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What is a Lambda?
Could someone provide a good description of what a Lambda is? We have a tag for them and they're on the secrets of C# question, but I have yet to find a good definition and explanation of what they are in the first place.
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Perforce for Git users? [closed]
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I don't think this description is entirely accurate - git stores complete snapshots of all files, and creates a new snapshot when a file is changed (which makes it expensive in case of frequent changes to large binary files), so a commit just c...
Is there a CSS selector for the first direct child only?
...e first child of their parent." The sub contains one tag that matches that description.
It is unclear to me whether you want both children of the main div or not. If so, use this:
div.section > div
If you only want the header, use this:
div.section > div:first-child
Using the > chang...
What is the minimum valid JSON?
I've carefully read the JSON description http://json.org/ but I'm not sure I know the answer to the simple question. What strings are the minimum possible valid JSON?
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How to access random item in list?
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Beautiful. IN ASP.NET MVC 4.5, uisng a list, I had to change this to: list.OrderBy(x => Guid.NewGuid()).FirstOrDefault();
– Andy Brown
Sep 3 '14 at 9:56
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System.MissingMethodException: Method not found?
What once was working in my asp.net webforms app now throws this error:
34 Answers
34
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In Python, how do I indicate I'm overriding a method?
...ss B(A):
@overrides(A)
def a(self):
pass
results in more descriptive NotImplementedError error
function "a" is an @override but that function is not implemented in base class <class '__main__.A'>
full stack
Traceback (most recent call last):
…
File "C:/Users/user1/p...
How to sort strings in JavaScript
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list.sort((a, b) => +(a.attr > b.attr) || -(a.attr < b.attr))
Description
Casting a boolean value to a number yields the following:
true -> 1
false -> 0
Consider three possible patterns:
x is larger than y: (x > y) - (y < x) -> 1 - 0 -> 1
x is equal to y: (x >...
Where is the documentation for the values() method of Enum?
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Enum.valueOf class(The special implicit values method is mentioned in description of valueOf method)
All the constants of an enum type can be obtained by calling the implicit public static T[] values() method of that type.
Enum Types, Section 8.9, Java Language Specification
The value...
HTML button to NOT submit form
... (see the W3Schools website: http://www.w3schools.com/tags/att_button_form.asp)
In other words, the button type is "submit" by default
<button type="submit">Button Text</button>
Therefore an easy way to get around this is to use the button type.
<button type="button">But...